Super Mario Run has cleared fifty million downloads in only seven days following its December 15 debut on the App Store, Nintendo Japan announced on Twitter Friday. In celebration of the latest achievement, Nintendo is giving all Super Mario Run players ten Rally Tickets for free.Nintendo advises us to use the free tickets to “enjoy all the fun of the Toad Rally mode”.If you'd rather not spend your free Rally Tickets on Toad Rallies, the new Friendly Run mode lets you challenge friends to a Friendly Run without using Rally Tickets or worrying about losing toads in your Kingdom. On the downside, coins, toads and the number of enemies defeated don't increase in this mode.